diff --git a/.github/workflows/stack.yml b/.github/workflows/stack.yml
index 8f42afa..63869f0 100644
--- a/.github/workflows/stack.yml
+++ b/.github/workflows/stack.yml
@@ -2,10 +2,10 @@ name: stack
 on:
   push:
     branches:
-      - main
+      - master
   pull_request:
     branches:
-      - main
+      - master
 
 defaults:
   run: